Solid Oxide Fuel Cell Development at Topsoe Fuel Cell A/S and Risø National Laboratory

Niels Christiansen, J B. Hansen, H H. Larsen, Søren Linderoth, Peter Halvor Larsen, Peter Vang Hendriksen, Anke Hagen

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    The consortium of Topsoe Fuel Cell A/S and Riso National Laboratory has up-scaled its production capacity of anode-supported cells to about 1100 per week. Stacks are based on a compact thin plate multilayer design with metallic interconnects and 12x12 cm(2) or 18x18 cm(2) foot print. Larger (500 cm(2)) cells are currently under evaluation. Stacks have been tested successfully for more than 13000 h. Several 50 or 75 cell stacks in the 1+ kW power range have been tested successfully at a fuel utilisation of up to 92%. Multi stack modules consisting of four 75 cell stacks have been tested for more than 4000 h with pre-reformed natural gas and modules consisting of twelve stacks are under development. The degradation rate has been reduced to below 0.5% per 1000 h, especially by improvement of metal alloy interconnects and coatings. Our SOFC program comprises development of next generation cells with metallic support for operation at lower temperature. In this case porous ferritic steel is used as a cheap, ductile, robust cell support and the electrolyte is based on scandia-stabilized zirconia with improved durability. Furthermore, the metal supported cells offer a significantly improved tolerance towards redox cycling. In collaboration with Wartsila, a 24-stack prototype based on natural gas is being tested. For methanol based systems the methanol is methanated upstream the anode using a newly developed proprietary Haldor Topsoe catalyst. The range of fuels have further been extended to include ethanol and coal syngas by development of a new coke resistant catalyst suitable for future SOFC technology.
    Original languageEnglish
    JournalE C S Transactions
    Issue number1
    Pages (from-to)31-38
    Publication statusPublished - 2007
    Event10th International symposium on solid oxide fuel cells - Nara New Public Hall, Nara, Japan
    Duration: 3 Jun 20078 Jun 2007
    Conference number: 10


    Conference10th International symposium on solid oxide fuel cells
    LocationNara New Public Hall

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    Copyright The Electrochemical Society, Inc. [2007]. All rights reserved. Except as provided under U.S. copyright law, this work may not be reproduced, resold, distributed, or modified without the express permission of The Electrochemical Society (ECS).


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